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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_RESOURCE_H
#define _LINUX_RESOURCE_H
#include <linux/time_types.h>
#include <linux/types.h>
/*
* Resource control/accounting header file for linux
*/
/*
* Definition of struct rusage taken from BSD 4.3 Reno
*
* We don't support all of these yet, but we might as well have them....
* Otherwise, each time we add new items, programs which depend on this
* structure will lose. This reduces the chances of that happening.
*/
#define RUSAGE_SELF 0
#define RUSAGE_CHILDREN (-1)
#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */
#define RUSAGE_THREAD 1 /* only the calling thread */
struct rusage {
struct __kernel_old_timeval ru_utime; /* user time used */
struct __kernel_old_timeval ru_stime; /* system time used */
__kernel_long_t ru_maxrss; /* maximum resident set size */
__kernel_long_t ru_ixrss; /* integral shared memory size */
__kernel_long_t ru_idrss; /* integral unshared data size */
__kernel_long_t ru_isrss; /* integral unshared stack size */
__kernel_long_t ru_minflt; /* page reclaims */
__kernel_long_t ru_majflt; /* page faults */
__kernel_long_t ru_nswap; /* swaps */
__kernel_long_t ru_inblock; /* block input operations */
__kernel_long_t ru_oublock; /* block output operations */
__kernel_long_t ru_msgsnd; /* messages sent */
__kernel_long_t ru_msgrcv; /* messages received */
__kernel_long_t ru_nsignals; /* signals received */
__kernel_long_t ru_nvcsw; /* voluntary context switches */
__kernel_long_t ru_nivcsw; /* involuntary " */
};
struct rlimit {
__kernel_ulong_t rlim_cur;
__kernel_ulong_t rlim_max;
};
#define RLIM64_INFINITY (~0ULL)
struct rlimit64 {
__u64 rlim_cur;
__u64 rlim_max;
};
#define PRIO_MIN (-20)
#define PRIO_MAX 20
#define PRIO_PROCESS 0
#define PRIO_PGRP 1
#define PRIO_USER 2
/*
* Limit the stack by to some sane default: root can always
* increase this limit if needed.. 8MB seems reasonable.
*/
#define _STK_LIM (8 * 1024 * 1024)
/*
* Limit the amount of locked memory by some sane default:
* root can always increase this limit if needed.
*
* The main use-cases are (1) preventing sensitive memory
* from being swapped; (2) real-time operations; (3) via
* IOURING_REGISTER_BUFFERS.
*
* The first two don't need much. The latter will take as
* much as it can get. 8MB is a reasonably sane default.
*/
#define MLOCK_LIMIT (8 * 1024 * 1024)
/*
* Due to binary compatibility, the actual resource numbers
* may be different for different linux versions..
*/
#include <asm/resource.h>
#endif /* _LINUX_RESOURCE_H */
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